Gun port



Nov. 5, 1929. E, H LU'SON 1,734,720

, GUN PORT Filed Dec. 27, 1926 F q I I. I i I so 30 I l -r i I 2. Y l I l r"-- l 1 J M FIG. I --a Patented Nov. 5 1929 i sTs i 7 1C]; I

"EDWARD H. ELLISON,

or JAMEs'row NEW YORK, ASSIGNOR T0 nLLIsoN BRONZE COMPANY, me, or FALCONER, NEW YORK,

A CORPORATION on NEW Yon]:

GUN PORT V Application filed December 27, 1926.: Serial No. 157,147.

This invention relates to an improvement in a gunport, and more particularly one that embodies gates which will swing in one direction, being rigidly held against movement in the other direction.

The provision in a wall of a porthole or orifice, through which the muzzle of a gun can be passed, is open to the objection that it can be used from either side of the wall, and the primary object of this invention is to avoid this danger by providing a gunport which can be fixed in said porthole, and by which use can only be made of the porthole from one side of the wall.

A further object of this invention resides in the provision in a gunport of the type above mentioned gates which are normally held closed, but which can be opened from one side by the nozzle of agun or other weapon, and which, when closed, shield the person inside the wall.

' the employees Other objects of this invention will appear from a consideration of the following description taken in connection with the drawings which forms a part thereof, and in which Fig. 1 is a front elevation of a gun port embodying one form of this invention;

Fig. 2 is a horizontal sectional View taken line 22 of Figure 1, and illustrating in dotted lines the position assumed by 1 along the the doors when the port is in use;

Fig. 3 is a vertical section taken along the line 33 of Figure 1, and illustrating particularly the spring construction, by which the doors are normally'held closed; and

Figs. 4 and 5 are sectional views taken along the lines 44 and 5-5 of Figure 1, and illustrating the means for sion of the door springs. v

Such gunports may be installed for example in banks and similar buildings to protect bers. The gunports are suitably located in the walls which separate the employees from .the lobby or public portion of the bank. In

the present instance, the device is shown installed in a tile or brick wall, being fixed in an orifice therein. For example, the gunport may be made of the proper size so that it can be substituted for a brick or tile without readjusting the tenthereof from bandits or robduiring any other alteration in the wall construction. s v

The gunport 10 is illustrated as mounted in an orifice 11 of a wall 12, the nu1neral13 designating the outer faceof the'wall, int the present case,the lobby side. 7 i

The gunport 10 proper is made up oftwo elements, viz: an outer member 14 and an inner member 15. The outermember 14-.con-

sists of an apertured face plate 16 which, as

shown in the drawings, extends beyond the edges of the orifice 11, and from which extend upper and lower flanges 17 18, ofsuch depth that they project through theorifice lland v side flanges 19, which connectthe flanges17,

the edges of which project beyond the opening of the orifice 11. Through the plate22 extends a passage 23 defined at the top and bottom by parallel walls 24, and at the sides by'walls 25, preferably converging as shown particularly in Figure 2. The passage 23 projects into therecesses21 formed in the flanges 17 and 18, theinner surfaces. ofthe walls 24 coinciding with the inner surfaces of the flanges 17 and 18 sothat itforms a continuation of the passage 20.

' The outer and inner members 14 and 155m joined by screws 26, which passithroughthe corners of the plate 22 and enter the flanges tightly clamped. Moreoverthe flanges 17 and 18 rest on the top and bottom walls of the orifice (see Figure 3), and the edges of Figur 2); Thus the gunport 10 be removed fromthe inner side oftheiwall 12.

The mouth :of the passage '20 of the outer member 14 is closed by a pair of solid gates 30 pivotally supported upon posts v3l. ,The

extending 1nto 'holes 32,33, drilled therein.

The holes 32 in the flangel'? are considerfor apurposeto '17 and 18. By meansof the screws26 the por- I tionsof the wall 12 aroundthe orifice Here posts 31 are carried by the flanges 17 and 18, V

25 of the passage 23 allow a considerable 2. In a gunport adapted to be mounted in an orifice and having a passage there through, a pair of gates normally closing said passage, posts on wh1ch said gates are pivotally mounted, said gates having chambers,

through which said posts pass, and coil springs in said chambers and surrounding said posts for holding said gates closed.

In testimony whereof I' have. aflixed my signature.

' EDWARD I-I. ELLISON.

closed. Each coil spring 37 is fixed to the gate 30 by passing its lower end into a pocket 38, opening into the chamber 36 of the gate 30. The upper end of the spring 37 enters a similar pocket 39 in the collar 34. l

The collar 34 is provided with a plurality of radially arranged recesses 41, while' threaded into the flange 17 are screws 42, the

tips 43 of which will enter one of the pockets 41 in the collar 34, (see Figure 3). The tension of each'spring 37 is set before the outer and inner members are assembled by backing ofi the screws 42 until the tip 43 leaves the opening 41 in the collar 34, turning the collar 34 in the proper direction until the proper tension has been reached, and then tightening the screw 42; the collar 34 being so fixed that one of the pockets 41 is opposite the screw 42, and will receive the tip 43, thus rigidly fixing the collar to the flange 17 and preventing any movement thereof under the urge of the spring 37 The collars 34 may be turned by spanner wrenches, not shown, which en gage holes 44 in the outer faces of the collars.

'The gates 30 under the tension of the springs 3'7 close the passage 23, being fixed 'in the closing position by the contact of proections 45 on the gates with the flanges 19.

t will be noted that when the parts are assembled no screws are exposed, and that the gates cannot easily be opened from without. It is, however, very easy for anyone behind the wall 12 to open the gates 30 by pushing the nozzleiof a gun against them. The walls '3 range to the holder of the gun, so that with a few such ports the lobby of the bank can be completely covered. 3

While one embodiment of this invention has been shown and described, applicant is I not limited thereto, since it is obvious that a pair of gates normally closing said passage,

other embodiments can be made without departing from the spirit and scope of this invention as set forth in the following claims.

Having thus set forth my invention, what I claim as new and for which I desire protection by Letters Patent is:

1. In a 'gunport adapted to be mounted in an orifice and having a passage therethrough,

posts on which said gates are pivotally mounted, said gates having chambers through which said posts pass, and springs in said chambers for holding said gates closed. 

